[Help] Yang bomb Issue

[Zambia]

I've installed a Beta maps with monster in my server.
But the monsters drops a lot of yangs, which can't be picked up with third hand
how do i disable yang bombs, and instead drops yangs that actually can be picked up with third hand?

[.iPaCHeL]

Mobs rank 5? (mob_proto)

[Fliegex3]

Switch the mobs rank from 4/5 to 3.